Consolidated Balance Sheets (USD $)	Jul. 31, 2012	Apr. 30, 2012
Current assets:
Cash and cash equivalents	$ 1,122,971	$ 3,274,741
Accounts receivable, less allowance for doubtful accounts and sales returns of $200,000 at July 31, 2012 and April 30, 2012	3,015,096	2,604,775
Inventories	3,801,321	2,932,072
Other current assets	500,585	115,652
Total current assets	8,439,973	8,927,240
Note receivable	375,000
Property and equipment, at cost:
Machinery and equipment	11,975,980	11,975,980
Leasehold improvements	607,867	607,867
Property and equipment, gross	12,583,847	12,583,847
Less: accumulated depreciation and amortization	11,945,435	11,885,435
Net property and equipment	638,412	698,412
Other assets	81,449	54,832
Intangible assets, net of accumulated amortization	255,666	296,566
Goodwill	1,453,034	1,453,034
Total assets	11,243,534	11,430,084
Current liabilities:
Note payable-revolving credit line	951,383	120,986
Accounts payable	1,172,145	1,017,328
Accrued liabilities	645,720	765,623
Due to related party - current portion	366,667	333,333
Total current liabilities	3,135,915	2,237,270
Due to related party - long term	1,600,000	1,666,667
Total liabilities	4,735,915	3,903,937
Stockholders' equity:
Common stock, par value $1.00 per share. Authorized 54,000,000 shares; issued and outstanding 10,703,309 at July 31, 2011 and April 30, 2012	10,703,309	10,703,309
Treasury stock 181,554 shares as of July 31, 2012 and 43,900 shares as of April 30, 2012 at cost	187,561	45,299
Additional paid-in capital	10,395,217	10,295,766
Accumulated deficit	(14,403,346)	(13,427,629)
Total stockholders' equity	6,507,619	7,526,147
Total liabilities and stockholders' equity	$ 11,243,534	$ 11,430,084